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Finding the Fourth Proportional to 255,740.68, 352,923.78 and 148,374.76

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Solution

The fourth proportional to 255,740.68, 352,923.78 and 148,374.76 is: 204,758.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,740.68 : 352,923.78 = 148,374.76 : x
  2. Step 2: Convert to fraction form
    255,740.68/352,923.78 = 148,374.76/x
  3. Step 3: Cross multiply
    255,740.68x = 352,923.78 × 148,374.76
  4. Step 4: Simplify right side
    255,740.68x = 52,364,981,155.79
  5. Step 5: Solve for x
    x = 52,364,981,155.79/255,740.68
  6. Step 6: Final answer
    x = 204,758.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.